One very handy feature of public key encryption is that both the public or the private key can be used to encrypt something, which can then only be decrypted with the remaining key. If you remember from my previous Blog entry, I mainly focused on the case where someone encrypts a message with a public [...]
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Last week I went through symmetric encryption, and explained why it is not accepted as a great fit for secure communication. Today I’ll talk about asymmetric encryption and public key infrastructure. The invention of asymmetric encryption as we use it today is attributed to a publication by Whitfield Diffie and Martin Hellman in 1976, who were [...] PKI, or Public Key Infrastructure has been around for over 3 decades now, yet it is still an enigma for your average lay-person even though they use it regularly while they are shopping online, exchanging encrypted emails or using other security systems. Yet, only a fraction of users really understand what exactly a certificate is, [...] |
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